1011197 has 12 divisors (see below), whose sum is σ = 1137948. Its totient is φ = 897600.

The previous prime is 1011191. The next prime is 1011217. The reversal of 1011197 is 7911101.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 755161 = 506^2 + 869^2 .

It is not a de Polignac number, because 1011197 - 2¹⁴ = 994813 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7313 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (94829).

2^1011197 is an apocalyptic number.

It is an amenable number.

1011197 is a deficient number, since it is larger than the sum of its proper divisors (126751).

1011197 is a wasteful number, since it uses less digits than its factorization.

1011197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 20.

The square root of 1011197 is about 1005.5829155271. The cubic root of 1011197 is about 100.3718489034.

Adding to 1011197 its reverse (7911101), we get a palindrome (8922298).

The spelling of 1011197 in words is "one million, eleven thousand, one hundred ninety-seven".